Alternative Energy.
Hydrogen may be a fuel which will save our power-hungry future, but we know what it's really good for: blowing stuff up. The Hydrogen Fuel Rocket uses hydrogen to launch a rocket up to 200 feet in the air
Even better, this rocket is very easy to set up and use. There is no gluing and with only minimal assembly, you'll have the rocket launcher assembled in about one minute.
Mix the Propellant Crystals (Citric Acid) with water, and you have your rocket fuel.
The ignition button is a big red handheld button, and there aren't words to describe how satisfying it is to press it and watch your rocket disappear into the sky. Don't worry, each rocket set has enough fuel for many, many flights - one packet of crystals makes one bottle of fuel, which can be used multiple times. .Estes Hydrogen Fuel Rocket
Includes: Rocket, Launcher, 4 Packets of Propellant Crystals, Fuel
Bottle, Replacement O-Rings, Instructions
Dimensions: Launcher - 10" X 11" X 17.5"; Rocket Length: 11"
Uses 6 D Batteries and Water (not included)
Weight :1820gr (appprox 2 kg )